Apple Pay; Click to Pay ; Forms of payment accepted at Retail. Apple Pay defaults to credit, so you're not able to purchase a money order with it.Yes, you can buy a money order with Apple Pay, but it largely depends on the location and the payment options the merchant accepts. Fill in the recipient's name. Decide on the money order amount. But there is ways around it. How to fill out a USPS money order? You can contact an Apple Pay Later Specialist at (866)7327753 from am to pm ET, seven days a week. Money orders made easy. Online account access makes it easy to manage your account anytime you want.